This PR fixes the long-standing major bug that for languages using ',' as decimal separator the material editor was useless. (bug no. 10 in https://forum.freecad.org/viewtopic.php?t=56912)
the issue was that the value was handled as text. This PR:
- using a spinbox instead if a text edit to modify numbers (has also the advantage to be able to change values by spinning)
- sets min/max properly for all number data types
- also avoid rounding artifacts when changing Float values
As the property descriptions are translated at a central place in the
GUI, we have to use the generic "App::Property" category.
For details see https://tracker.freecadweb.org/view.php?id=0002524
As the property docs are also used as tool tips in the InvoluteGear's
task panel, this is also needed to achive a fully translatable GUI.
In order to not maintain the same information in two places, the property
docs are reused as tool tips for their input fields. And for user
convenience, the same tool tip is assigned to the respective label as
well.
- on creating a new material object, don't pollute the console wit wrong error messages (if no material is yet selected, of course nothing can be found)
- fix that for anew fluid materials the material editor was started with solid materials
- handle case that material cards are chosen from folders outside of the standard material folders
- also reduce singleStep size for spin edits for more convenience
- when the option "use this task panel" is not checked the edit fields must be disabled.
This also fixes the often hard to understand issue that while scrolling to the end of the dialog the material suddenly changes to "_transient" because the scroll wheel can trigger to change the edit fields.
- the material editor failed for Fluid materials because this info was not passed to it. Instead always solid materials were loaded.
- also fix warning about too long variable name and remove unnecessary debug code
- at the moment you get several warnings about missing icons when starting the Material editor
The reason is that they are not registered in CMake
- also remove icon from Material icon editor. As it is a child of FreeCAD it should have the same FreeCAD icon as all other FreeCAD widgets.
- also fix warning about too short variable name
- active already the analysis
- generate the mesh preferably directly, also if this fails, load the rough meshes
- use value for Air is they are in our Air material card
- apply material to the body (not necessary but good practice, the examples are there to teach people and for more complex models setting the material to a body is important)
